Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
thanh tran » thanh trang, thanh toan, thanh tuan
hanh tang » hanh trang, anh tang, hanh mang
thanh tra » thanh toan, thanh hoa
theo yeu » theo tieu, thiet yeu, theo chu
theo te » theo tu, theo tieu
tang va » trang va, tang van, thang va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo te) or (theo yeu)) sach - hanh tang va nhung cong ((thanh tran) OR (thanh tra)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo te) OR (theo yeu)) sach - hanh tang va nhung cong ((thanh tran) OR (thanh tra)) tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo te) or (theo yeu)) sach - hanh tang va nhung cong ((thanh tran) OR (thanh tra)) tap".
• Adding a wildcard symbol may retrieve word variants: ((theo te) or (theo yeu)) sach - hanh tang va nhung cong ((thanh tran) OR (thanh tra)) tap*.